As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON POWER UP, THERE IS A NOTICEABLY LOUD BUZZING FROM THE BACK OF THE MICROWAVE. SMELLS AS IF PLASTIC BURNING OR HAS GOTTEN VERY HOT. TRIED TO RESET CIRCUIT BREAKER, BUZZING AND SMELL PERSISTS. INSPECTED MICROWAVE, COFFEE MAKER, AND GALLEY. OPS CHECK GOOD. IAW MM 25-30-02